public function KeyValueStoreInterface::setIfNotExists

Saves a value for a given key if it does not exist yet.

Parameters

string $key: The key of the data to store.

mixed $value: The data to store.

Return value

bool TRUE if the data was set, FALSE if it already existed.

3 methods override KeyValueStoreInterface::setIfNotExists()
DatabaseStorage::setIfNotExists in drupal/core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php
Implements Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists().
MemoryStorage::setIfNotExists in drupal/core/lib/Drupal/Core/KeyValueStore/MemoryStorage.php
Implements Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists().
NullStorageExpirable::setIfNotExists in drupal/core/lib/Drupal/Core/KeyValueStore/NullStorageExpirable.php
Implements Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists().

File

drupal/core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php, line 76
Contains Drupal\Core\KeyValueStore\KeyValueStoreInterface.

Class

KeyValueStoreInterface
Defines the interface for key/value store implementations.

Namespace

Drupal\Core\KeyValueStore

Code

public function setIfNotExists($key, $value);